void
wts_salvage(void)
{
WT_CONNECTION *conn;
WT_SESSION *session;
int ret;
conn = g.wts_conn;
track("salvage", 0ULL, NULL);
/*
* Save a copy of the interesting files so we can replay the salvage
* step as necessary.
*/
if ((ret = system(
"cd RUNDIR && "
"rm -rf slvg.copy && "
"mkdir slvg.copy && "
"cp WiredTiger* wt* slvg.copy/")) != 0)
die(ret, "salvage copy step failed");
if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
die(ret, "connection.open_session");
if ((ret = session->salvage(session, g.uri, NULL)) != 0)
die(ret, "session.salvage: %s", g.uri);
if ((ret = session->close(session, NULL)) != 0)
die(ret, "session.close");
}
/*
* salvage --
* A single salvage.
*/
static void
salvage(void)
{
WT_CONNECTION *conn;
WT_SESSION *session;
conn = g.wts_conn;
track("salvage", 0ULL, NULL);
testutil_check(conn->open_session(conn, NULL, NULL, &session));
testutil_check(session->salvage(session, g.uri, "force=true"));
testutil_check(session->close(session, NULL));
}
/*
* salvage --
* A single salvage.
*/
static void
salvage(void)
{
WT_CONNECTION *conn;
WT_DECL_RET;
WT_SESSION *session;
conn = g.wts_conn;
track("salvage", 0ULL, NULL);
testutil_check(conn->open_session(conn, NULL, NULL, &session));
if ((ret = session->salvage(session, g.uri, "force=true")) != 0)
testutil_die(ret, "session.salvage: %s", g.uri);
testutil_check(session->close(session, NULL));
}
/*
* process --
* Salvage, verify and dump the created file.
*/
void
process(void)
{
FILE *fp;
WT_CONNECTION *conn;
WT_CURSOR *cursor;
const char *key, *value;
WT_SESSION *session;
char config[100];
/* Salvage. */
config[0] = '\0';
if (verbose)
snprintf(config, sizeof(config),
"error_prefix=\"%s\",verbose=[salvage,verify],",
progname);
strcat(config, "log=(enabled=false),");
CHECK(wiredtiger_open(NULL, NULL, config, &conn) == 0);
CHECK(conn->open_session(conn, NULL, NULL, &session) == 0);
CHECK(session->salvage(session, "file:" SLVG, 0) == 0);
CHECK(conn->close(conn, 0) == 0);
/* Verify. */
CHECK(wiredtiger_open(NULL, NULL, config, &conn) == 0);
CHECK(conn->open_session(conn, NULL, NULL, &session) == 0);
CHECK(session->verify(session, "file:" SLVG, 0) == 0);
CHECK(conn->close(conn, 0) == 0);
/* Dump. */
CHECK((fp = fopen(DUMP, "w")) != NULL);
CHECK(wiredtiger_open(NULL, NULL, config, &conn) == 0);
CHECK(conn->open_session(conn, NULL, NULL, &session) == 0);
CHECK(session->open_cursor(
session, "file:" SLVG, NULL, "dump=print", &cursor) == 0);
while (cursor->next(cursor) == 0) {
if (page_type == WT_PAGE_ROW_LEAF) {
CHECK(cursor->get_key(cursor, &key) == 0);
CHECK(fputs(key, fp) >= 0);
CHECK(fputc('\n', fp) >= 0);
}
CHECK(cursor->get_value(cursor, &value) == 0);
CHECK(fputs(value, fp) >= 0);
CHECK(fputc('\n', fp) >= 0);
}
CHECK(conn->close(conn, 0) == 0);
CHECK(fclose(fp) == 0);
}
/*
* salvage --
* A single salvage.
*/
static void
salvage(void)
{
WT_CONNECTION *conn;
WT_SESSION *session;
int ret;
conn = g.wts_conn;
track("salvage", 0ULL, NULL);
if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
die(ret, "connection.open_session");
if ((ret = session->salvage(session, g.uri, "force=true")) != 0)
die(ret, "session.salvage: %s", g.uri);
if ((ret = session->close(session, NULL)) != 0)
die(ret, "session.close");
}
Status WiredTigerKVEngine::_salvageIfNeeded(const char* uri) {
// Using a side session to avoid transactional issues
WiredTigerSession sessionWrapper(_conn);
WT_SESSION* session = sessionWrapper.getSession();
int rc = (session->verify)(session, uri, NULL);
if (rc == 0) {
log() << "Verify succeeded on uri " << uri << ". Not salvaging.";
return Status::OK();
}
if (rc == EBUSY) {
// SERVER-16457: verify and salvage are occasionally failing with EBUSY. For now we
// lie and return OK to avoid breaking tests. This block should go away when that ticket
// is resolved.
error() << "Verify on " << uri << " failed with EBUSY. Assuming no salvage is needed.";
return Status::OK();
}
// TODO need to cleanup the sizeStorer cache after salvaging.
log() << "Verify failed on uri " << uri << ". Running a salvage operation.";
return wtRCToStatus(session->salvage(session, uri, NULL), "Salvage failed:");
}